"JOURNAL OF RADIO ELECTRONICS"  N 12, 2014

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Stochastic interpolation of bearing in adaptive antenna arrays with consistent beam formation on the basis of truncated (small element) apertures and robust statistics at the input


Yu. N. Gorbunov

Kotel'nikov Institute of Radio-engineering and Electronics of RAS, Fryazino branch

Moscow State Technical University of Radio Engineering, Electronics and Automation (MSTU MIREA)

 

The paper is received on December 1, 2014

 

Abstract. We analyze the construction of a system of radar signal processing and generation for satellites, which takes into account the technical limitations and instrumental resource limitations of digital processing. The desired effectiveness can be obtained by using simplified procedures for processing of spatio-temporal signals using the stochastic interpolation of bearing in adaptive antenna arrays. Sequence beam formation on the basis of truncated (small element) apertures and robust statistics at the input of coarse ("Boolean", "binary-iconic") signal samples is used. This is especially actually for the implementation of radar equipment in conditions of constraints of hardware and computing resources, weight and size restrictions, restrictions on word length, energy potential and cost. To achieve the advantages a non-traditional approach is proposed: to implement a stochastic modulation of phase center position by activation of a small number of transmit elements and to use omnidirectional coarse (low-bit) of the current sample of the input signals.

 Keywords: sequence beam formation, randomization, stochastic interpolation, rough readings, small-sized samples, the instrumental precision.